The second Kickstarter I backed (Wasteland 2 being the first) just handed out their beta to everyone. It's called FTL and is a little indy Rogue like space game. They sent out Steam keys to all the backers and it is up and running great.
So while it hasn't been delivered in "release" form yet, it has been delivered.
So while it hasn't been delivered in "release" form yet, it has been delivered.